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Michael J Williams, Dmd, PC

Periodontics in Pittsfield, MA · enumerated 2007 · authorized official Michael Williams, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255463691

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Registry record

Entity type Organization (Type 2)
Legal business name Michael J Williams, Dmd, PC
Practice address 120 South St, Pittsfield, MA, 01201
Phone (413) 442-7855
Fax (413) 499-3605
Enumeration date Mar 12, 2007
Last updated in NPPES Jun 22, 2008

Taxonomy & classification

1223P0300X Periodontics Dental Providers · License 20171 (MA) Primary

Authorized official

Name Michael Williams
Title President
Phone (413) 442-7855

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Michael J Williams, Dmd, PC?
Michael J Williams, Dmd, PC is registered in NPPES as a Periodontics (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-22.